Year	Number
1960	37340
1961	38152
1962	38998
1963	39880
1964	40799
1965	41735
1966	42693
1967	43697
1968	44741
1969	45785
1970	46774
1971	47480
1972	48000
1973	48662
1974	49471
1975	50487
1976	51868
1977	53575
1978	55458
1979	57492
1980	59662
1981	61953
1982	64362
1983	66882
1984	69539
1985	72357
1986	75232
1987	78048
1988	80844
1989	83677
1990	86554
1991	89502
1992	92555
1993	95700
1994	98922
1995	102219
1996	105579
1997	109001
1998	112476
1999	115979
2000	119220
2001	122159
2002	125080
2003	128041
2004	131059
2005	134137
2006	137280
2007	140499
2008	143813
2009	147332
2010	151147
2011	155238
2012	159549
2013	164049
2014	168726
2015	173554
2016	178506
2017	183555
2018	188700
2019	193945
2020	199425
2021	205183
2022	210735
2023	216035